No problem, we've got 4381 and 2079 to multiply
4381 × 2079 = 2079 × (4381)
+ 2079 × 1 giving us 2079
+ 2079 × 80 which equals 166320
+ 2079 × 300 what gives us 623700
+ 2079 × 4000 which equals 8316000

= 9108099
